open source software, software development, college hoops, and other stuff
Software
Here’s something I’ve wanted for a long time: asking my calendar questions in plain English. As of WebCalendar 1.9.16, you can. WebCalendar now ships an MCP server — Model Context Protocol support — so you can connect an AI assistant like Claude directly to your self-hosted calendar and say things like “What’s on my calendar […]
Software
A practical comparison of the best open-source, self-hosted Google Calendar alternatives in 2026 — Nextcloud, Radicale, Baikal, SOGo, DAViCal, and WebCalendar — and how to choose the right one.
WebCalendar
Serve your self-hosted WebCalendar over HTTPS by putting Caddy, Nginx, or Traefik in front of the Docker container — including the X-Forwarded-Proto fix that prevents redirect loops and mixed content.
WebCalendar
A step-by-step guide to installing the self-hosted, open-source WebCalendar with Docker Compose — from a one-command quick start to a production-ready setup with MariaDB, persistent data, and backups.
Python
I’m excited to share my latest project: k5n-mcp-hub, a small, local-first hub for the MCP servers you build and run on your own machine. The code, docs, and a Dockerfile are on GitHub: https://github.com/craigk5n/k5n-mcp-hub The Model Context Protocol (MCP) has quickly become the way to connect AI assistants to tools, data, and services. If you […]
News
Update: The WebCalendar plugin for WordPress is now available! You can find full details, features, and download information on the plugin page at agenticdaisy.com/webcalendar. I’m excited to announce that I’ve been building a WordPress plugin for WebCalendar — and it’s nearly ready for release. For those who don’t know me, I’m Craig Knudsen, and I’ve […]
News
I’m excited to share that my new open-source library, php-icalendar-core, is now available on GitHub: https://github.com/craigk5n/php-icalendar-core This is a clean, modern, zero-dependency PHP 8.2+ library for parsing and writing iCalendar (.ics) data according to RFC 5545, with strong support for recurrence rules (RRULE), timezones, and even forward-compatible rich-text descriptions via STYLED-DESCRIPTION (RFC 9073). Table of Contents […]
News
Discover the newest update for developers – WebCalendar v1.9.1 and the latest development code version are now available on DockerHub! Learn how to use Docker commands to pull these versions straight into your development environment.
ChatGPT
Are you a Peloton enthusiast looking for a seamless way to integrate your workout schedule with your calendar? We’ve got you covered! In this article, we’ll walk you through the process of effortlessly adding your Peloton workouts to popular calendar applications, allowing you to stay organized and stay on top of your fitness goals.
We embarked on this journey armed with ChatGPT, a powerful language model, to guide us in finding the necessary Python libraries and implementing a conversion script. With the help of the pylotoncycle library and some custom code, we developed a solution that automates the conversion of Peloton workouts to iCalendar format.
But we didn’t stop there. We recognized the importance of contributing back to the community, so we added unit tests and submitted a pull request to the pylotoncycle library. Our contribution not only enhanced the library but also paved the way for other developers to leverage our solution for their own Peloton integration needs.
In this article, we’ll explain the challenges we faced, the steps we took to overcome them, and the benefits of integrating Peloton workouts with calendars. Whether you’re a software developer or a Peloton user interested in the technical details, this article will provide you with the insights and guidance you need to seamlessly incorporate your Peloton workouts into your calendar.
AWS
For applications like WebCalendar, it’s important to have a reliable and scalable infrastructure to support them. One way to achieve this is by using Infrastructure as Code (IAC) to provision and manage your infrastructure. IAC allows you to automate the provisioning and management of your infrastructure, reducing the risk of errors and saving time. In this post, we will be discussing how to use Terraform to install aWebCalendar on an AWS EC2 instance using Amazon Linux 2. We will also discuss the benefits of IAC and compare Terraform to AWS Cloud Formation.
AWS
In this post, I am going to go over some of the options for installing WebCalendar using Amazon AWS. I’ll go over the most common ways and discuss the benefits and issues with each here.
Downloads
Version 1.9.0 of WebCalendar has been released. This release is overdue and addresses some of the technical debt that has accumulated in WebCalendar over the years. But first, here is the URL to get the release from Github: https://github.com/craigk5n/webcalendar/releases/tag/v1.9.1 Some of the notable changes include: Numerous security fixes (XSS, CSRF) Adopted use of composer for […]
